Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7719737 | Optical scanning device, image forming apparatus and liquid crystal device driving method | Taku Amada, Seizo Suzuki, Akihisa Itabashi, Mitsuo Suzuki | 2010-05-18 |
| 7612570 | Surface-potential distribution measuring apparatus, image carrier, and image forming apparatus | — | 2009-11-03 |
| 7400839 | Method and device for measuring surface potential distribution, method and device for measuring insulation resistance, electrostatic latent image measurement device, and charging device | — | 2008-07-15 |
| 7345826 | Optical scanning lens, optical scanning device and image forming apparatus | — | 2008-03-18 |
| 7239148 | Method and device for measuring surface potential distribution | — | 2007-07-03 |
| 7130130 | Optical scanning lens, optical scanning device and image forming apparatus | — | 2006-10-31 |
| 7072127 | Optical scanning lens, optical scanning device and image forming apparatus | Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi, Magane Aoki +5 more | 2006-07-04 |
| 6999208 | Optical scanner, optical scanning method, scanning image forming optical system, optical scanning lens and image forming apparatus | Seizo Suzuki, Hiromichi Atsuumi, Kohji Sakai, Magane Aoki | 2006-02-14 |
| 6891678 | Lens for optical scanning, optical scanner, and image forming apparatus | — | 2005-05-10 |
| 6870652 | Optical scanning lens, optical scanning device and image forming apparatus | Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi, Magane Aoki +5 more | 2005-03-22 |
| 6744545 | Optical scanning lens, optical scanning device and image forming apparatus | Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi, Magane Aoki +5 more | 2004-06-01 |
| 6555810 | Optical scanning device comprising a plurality of scanning units having one lens in common | — | 2003-04-29 |
| 6532094 | Optical scanning lens, optical scanning device and image forming apparatus | — | 2003-03-11 |
| 6400391 | Optical scanning lens, optical scanning device and image forming apparatus | Satoru Itoh, Tatsuya Ito, Takeshi Ueda, Yoshinori Hayashi, Magane Aoki +5 more | 2002-06-04 |
| 6376837 | Optical scanning apparatus and image forming apparatus having defective light source detection | Akihisa Itabashi, Magane Aoki, Akira Kojima, Nobuaki Kubo, Tomoya Ohsugi | 2002-04-23 |
| 6081386 | Optical scanning lens, optical scanning and imaging system and optical scanning apparatus incorporating same | Yoshinori Hayashi, Seizo Suzuki, Koji Masuda | 2000-06-27 |
| 5834766 | Multi-beam scanning apparatus and multi-beam detection method for the same | — | 1998-11-10 |